We protect human health and the quality of Idaho's air, land, and water.

Recent News

DEQ awards $89,505 to two Idaho water systems

April 22, 2026 | News Releases

BOISE — The Idaho Department of Environmental Quality (DEQ) awarded $89,505 to two water systems to help evaluate deficiencies and determine necessary upgrades.

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DEQ awards $1,800,000 to the City of Lewiston

BOISE – The Idaho Department of Environmental Quality (DEQ) today awarded $1,800,000 in low-interest drinking water emerging contaminant construction loan funding to the City of Lewiston in Nez Perce …

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DEQ seeks applications for fiscal year 2027 nonpoint source management grant program 

April 20, 2026 | News Releases

BOISE – The Idaho Department of Environmental Quality (DEQ) is seeking grant applications for the fiscal year 2027 federal nonpoint source management § 319 funding cycle. 

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DEQ issues last call for fiscal year 2027 State Agricultural Best Management Practices Grant Program

April 13, 2026 | News Releases

BOISE – The Idaho Department of Environmental Quality (DEQ) will close the application period for the fiscal year 2027 State Agricultural Best Management Practices (BMP) Grant Program on April 17, 202…

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Did You Know?

An EPA identification number is a unique number assigned to sites that allows states and EPA to track activities regulated under the Resource Conservation and Recovery Act. Learn how to obtain an EPA identification number in Idaho on DEQ’s website.
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